Description

Komatsu BR580JG-1 Installation Manual – Field Assembly Made Systematic

If you’re standing in a dusty field with a BR580JG-1 mobile crusher in pieces, you don’t need a sales pitch. You need the Komatsu BR580JG-1 Installation Manual – the factory document that tells you exactly which bolt gets what torque and in what order. I’ve torqued more head bolts than most people have had hot meals, and I still pull a manual when I’m assembling something I haven’t done in six months. Guessing costs time, parts, and sometimes hospital visits. This one is 155 pages of original OEM print, not a reprint, not a scan of a scan. You get the real thing.

Specifications and Overview: Know What You’re Dealing With

Before you even lay a wrench on the machine, the manual opens with specifications and precautions. Page 1 gives you the machine specs – weights, dimensions, fluid capacities. That tells you what kind of crane you need, how much hydraulic fluid to have on hand, and whether your shop floor can handle the load. Then comes the preface that hammers home safety: hold a safety meeting, appoint a crane director, work leader, liaison man. That’s not decoration. That’s the difference between finishing the job and finishing your career. The manual includes full details on field assembly precautions, so you don’t drop a crusher on someone’s foot.

Torque Specs: Page 15 – No Guessing Allowed

There’s a dedicated “Tightening Torque” section on page 15. You want to bolt up the crusher assembly? Look up the fastener size and grade, then set your wrench to that number. Not “tight enough.” Not “what the guy next to you says.” The OEM number. That’s what keeps threads from stripping and joints from loosening under vibration. The manual gives torque values for every critical connection – crusher mounting bolts, hopper bolts, conveyor components, guard assemblies. Use the list of tools on page 14 to make sure you have the right equipment before you start. A torque wrench that’s out of calibration is a waste of metal.

A. Assembly Procedure – Crusher to Hopper: 37 Steps to Success

The heart of this manual is the assembly procedure section, starting at page 29. It walks you through preparation for crusher installation (A-1), then the actual installation (A-2). Steps (A-3 through A-37) cover everything: steps, handrails, floor plates, crusher motor hoses, lock cylinder hoses, wiring, crusher covers, guard assembly, dust plates, second chutes, feeder motor, hopper installation (right, left, rear), hopper pins, tightening of hopper mounting bolts, greasing, fixed hopper if equipped, conveyor installation, conveyor piping, tension adjustment, snaking adjustment, scraper adjustment, return roller guard, muck discharge scraper (if equipped), magnetic separator, rear cover floor, tail pipe, rotary lamps and wiring, mirror adjustment, reservoir tank cover, fuel tank cover. Each step is broken down with specific instructions. No “refer to local regulations” fluff. It tells you which bolts to tighten first and in what order.

Check and Maintenance After Assembly: Don’t Start Without It

After you’ve bolted everything together, the manual doesn’t leave you hanging. Section M covers check and maintenance procedures after completion of assembly. That includes checking fuel, coolant, and lubricants (M-1), air bleeding from hydraulic circuits (M-2), replacing the return filter (standard to flushing filter – M-3), and flushing the hydraulic circuit (M-4). If you skip the hydraulic bleeding, you risk cavitation and pump failure. If you don’t flush the circuit, contamination wrecks valves. The manual gives the exact sequence, including where to put the flushing filter and how long to run the engine. There’s also a field assembly inspection report at the end – a checklist you can fill out to prove the job was done right. Use it.

Who Should Use This Factory Manual?

This manual is for the shop foreman who needs to delegate work to a team and make sure every bolt is torqued correctly. It’s for the fleet manager bringing a new crusher onto a job site. It’s for the mobile repair service that has to reassemble a BR580JG-1 after transport. Beginners? If you’re a home-garage guy who thinks a crusher is something you put in a blender, you probably shouldn’t be doing this alone. But if you’ve got mechanical experience and you follow the manual, you can get it done. The audience is anyone who needs to assemble this machine safely and to factory specification. No shortcuts, no “close enough.”

Why OEM Beats Aftermarket Copies

I’ve seen aftermarket manuals that copy the table of contents but rewrite the torque values. One job I walked onto had a bolt torqued to 80 ft-lb because the “manual” said so. OEM spec was 140 ft-lb. That bolt came loose on the second shift. Aftermarket documentation is a gamble. This manual is the original Komatsu factory PDF – same as what the dealer uses. It includes the exact coating materials list, separately shipped parts list, and the kit layout drawing. When you buy from AutoRepairManuals, you get the genuine file, not a photocopy. If you’re also working on other Komatsu equipment, check the related manuals: Komatsu WD900-3 Installation Manual – Field Assembly Specs & OEM Torque”>Komatsu WD900-3 Installation Manual – Field Assembly Specs & OEM Torque, Komatsu WF550A-3 Installation Manual – OEM Factory Assembly Specs”>Komatsu WF550A-3 Installation Manual – OEM Factory Assembly Specs, and Komatsu HD1500-5 Installation Manual – 199-Page Factory Assembly Guide”>Komatsu HD1500-5 Installation Manual – 199-Page Factory Assembly Guide. For general reference on manual transmissions used in some auxiliary drives, see Manual Transmission”>Manual Transmission or Manual Transmission”>Manual Transmission on Wikipedia.

Does the manual cover hydraulic bleeding?

Yes, section M-2 details the air bleeding procedure from hydraulic circuits.

What torque values are included?

Page 15 has a full “Tightening Torque” table. It covers all fasteners used in the field assembly – crusher mounting, hopper bolts, conveyor components, guards, and more. Values are given in Newton-meters and foot-pounds. Never rely on feel; use a torque wrench. I’ve seen field assemblies fail because someone skipped this step and thought “tight enough” was acceptable. The OEM spec is the only spec that matters.

Does the manual list the required tools?

Yes. Page 14 is the “List of Tools for Field Assembling.” It includes wrenches, sockets, torque wrenches, hydraulic jacks, slings, and special tools needed for specific steps. Gather them before you start – not after you’re halfway through and realize you don’t have a 46mm socket.

Is this the same manual a Komatsu dealer uses?

Yes. This is the official Komatsu field assembly instruction PDF, part number GEN00064-01. It covers serial numbers 1001 and up. No reprint, no aftermarket interpretation. What you access is what the factory sends to the field service technicians.

Look, I don’t waste time on manuals that pad the word count. This one earns its keep. Every spec, every step, every warning is there because someone at Komatsu decided it was necessary. Access the Factory Manual and keep it on your tablet or printed in a binder. Your machine, your crew, and your wallet will thank you.